Details the work of John Fenjohn, who invented a series of cameras for use in the underwater world. Film features footage of the Underwater Demolition Teams (UDTs), now known as the SEALs, conducting operations off of the submarine USS Quillback (SS-424). Also shows various developments in diving, including the use of the miniature depth gauge, SCUBA apparatus, and submarine air lock. Hosted by Commander Francis Douglas Fane, a former UDT. Most of the film was shot using the FenJohn underwater... Topic: Educational film.
Shows the launch and initial operations of the world's first nuclear powered submarine, the USS Nautilus SSN-571. President Harry S. Truman attends the launch ceremony. Hyman Rickover, the father of the nuclear submarine fleet, is also visible. Also featured is footage of the launch of USS Seawolf SSN-575 at the General Dynamics shipyard. This submarine used a sodium cooled reactor, which was not a successful design. When the Seawolf's reactor was disposed of off the Atlantic Coast, it became... Topic: Educational film.